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Effects of Pre-Starter Feeds Prepared Using Different Sugar Sources on Performance, Carcass Parameters, Internal Organ Development, Intestinal Development and Microbial Load in Broilers Full text
2022
Harun Kutay | Hasan Rüştü Kutlu
The purpose of the study is to determine the effects of pre-starter feed prepared using different sugar sources on the performance, carcass parameters, internal organs and intestinal development, microbial load in broilers. In total, 360 newly hatched chicks divided into 4 treatment groups with 5 replicates. 18 chicks with similar live weights (9 male, 9 female) were used for each replicate. Control or pre-starter feeds (containing %14 saccharose, %14 dextrose, or %7 saccharose+ %7 dextrose) were used for the feeding of the groups. For the feeding of the control group, standard chick starter feed was used for the first 5 days; for the treatment groups, the pre-starter feeds prepared were used. For the rest of the trial period, all groups were subjected to standard feeding. A significant difference was observed among groups with regards to live weight gain and feed conversion rate during the first four weeks of the study; however, this effect disappeared over the last week. In addition, it was determined that any differences observed with regards to carcass parameters other than hot and cold carcass weights, internal organ development aside from proventriculus, intestinal development and microbial load were not significant. It was concluded that the pre-starter feed prepared with saccharose and/or dextrose did not show the expected effect
Show more [+] Less [-]Determination of the Most Suitable Method to Predict the Available Sulfur Content in Cotton Growing Soils: Evidences from Aegean Coast, Türkiye Full text
2022
Seda Erdoğan Bayram | Hüseyin Hakerlerler
In this study, conducted on the selection of the most suitable method of determining the available sulfur content of soils where cotton is grown in the Coastal Aegean Region of Türkiye, soil and leaf samples were taken from a total of 40 cotton plantations in five different locations in the Coastal Aegean Region and Gediz Basin. Various physical and chemical characteristics of the soil’s samples, which were taken from a depth of 0-30 cm, were determined, and the available sulfur contents were determined with the use of seven different extraction solutions. The extraction method or methods by which the highest correlation or correlations were obtained between the available sulfur content of the soils and leaf sulfur contents of the plants in the same plantation were assessed as the most suitable methods. According to the results of the study, the highest soil-leaf correlation was obtained by soil extraction with Ca(H2PO4)2 solution, followed, in order, by the NH4OAc, KH2PO4, cold water and NaCl methods. No significant correlation was found between the amounts of sulfur determined by extraction with CaCl2 and KCl solutions and leaf sulfur contents. It was concluded that the most suitable methods for the determination of available sulfur in the soils of the Aegean Coastal Region where cotton is grown were the extraction methods using Ca(H2PO4)2 and NH4OAc solutions.
Show more [+] Less [-]Pesticide Use in Market Gardening and Perceived Risk of Consumers Exposed to Pesticide Residues Full text
2022
Khaoula Toumi | Joly Laure | Soudani Nafissa | Abbes Abdelkarim | Schiffers Bruno | Glida-Gnidez Habiba
Pesticides are commonly applied in market gardening to improve productivity and pest control. Pesticide residues could be persistent in vegetables and generate a potential health hazard for consumers. This study has been carried out in Tunisia to assess the perceived risk of consumers exposed to pesticide residues remaining in vegetables. Two surveys with different questionnaires were conducted among 30 market gardeners and 50 households located in the Djebeniana delegation (Sfax governorate, Tunisia) in order to analyze the phytosanitary practices of farmers on the one hand, and to better understand the attitude related to vegetable consumption and awareness on pesticide residues, on the other hand. The results revealed that various phytosanitary products have been used by market gardeners (43 commercial products containing 39 different active substances (AS)). Among these AS, abamectin and methomyl are considered as highly hazardous according the WHO classification. According to the behavior of pesticides in plants, more than half of the AS. (54%) are systemic and can be absorbed by the plant and moved around in its tissues. Furthermore, the majority of the surveyed farmers had never undergone agricultural training, which is a real handicap with respect to good phytosanitary practices. After applying pesticides, the pre-harvest interval was regularly not respected by almost half of the interviewed market gardeners. In addition, the study showed that all consumers washed their vegetables before consumption, but more than half of the respondents (54%) wash their vegetables for less than a minute (simply passing them under running water). In the light of these results, it appears that consumers may be exposed to pesticide residues from vegetables on the Tunisian market, with potential effects on their health.
Show more [+] Less [-]Determination of Milk Composition and Microbiological Properties in Goat Milk Obtained from Different Farms Full text
2022
Pelin Boğa | Gizem Kezer | Emre Şirin
Goat milk has a great importance for human nutrition considering its nutrient content. In addition, the demand for goat milk and products derived from goat milk has increased in recent years. However, the microbiological properties of milk can directly affect human health. In this study, it was aimed to determine the nutrient content and some microbiological properties of goat milk obtained from different farms. In the study, hand milking farms were determined. After milking, a sufficient amount of milk sample was taken and brought to the laboratory at +4°C. In the milk samples, the composition of the milk, the total number of aerobic mesophilic bacteria, the number of yeast-mold and coliform bacteria were determined. The highest protein, lactose and solids ratio (%) was obtained in milk samples taken from farms 2 and 4. The highest fat content in milk was determined in the sample taken from farm 4. It was observed that the milks of farms 2, 3 and 4 had similar mineral substance amounts. Total aerobic mesophilic bacteria (PCA) count (191×104), yeast-mold (PDA) count (42×103) and coliform bacteria (VRBA) count (710×102) were determined in farm 2. As a result, in terms of some milk components were determined statistical differences between farms. The main difference is in terms of milk hygiene. However, it was determined that the milk showed significant changes in terms of microbiological properties according to the farms from which they were obtained. It can also be said that these changes may affect the health of people who directly or indirectly consume these milks.
Show more [+] Less [-]A Study on Cattle Feeding Practices and Habits of Cattle Enterprises in Central County of Ağrı Province Full text
2022
Abdulkerim Diler | Mete Yanar | Veysel Fatih Özdemir | Recep Aydın | Rıdvan Koçyiğit | Ahmet Yılmaz
This study was carried out in the central county of Ağrı Province in order to reveal the cattle feeding habits of cattle breeders. For this purpose, data were obtained by conducting a face-to-face survey with 400 dairy cattle owners of the enterprises in the county. According to the results obtained from this study, it was determined that 91.5% of the breeders produced their forage crops. It was also found out that barley, alfalfa, and sainfoin were the most produced plants in these enterprises. However, the production of the corn silage, which is an important source of roughage for dairy cattle, was performed at a very low level (1.2%). Dry hay (93.5%) took first place among the roughage sources used in these enterprises, and it was followed by alfalfa hay (61.5%) and wheat-barley straw (28.0%). Corn silage was used at a low level (7.8%) in the cattle enterprises. It was determined that cattle breeders in the central county of Ağrı province were deficient in terms of some information about cattle feeding practices. It was also demonstrated that it was necessary to increase the usage and production of corn silage as forage crops and to implement rational animal feeding practices in place of the old traditional animal feeding habits. Therefore, cattle breeders in the central county of Ağrı province should be involved in technical training programs about the cattle feeding and forage planting. As result of the courses given to the cattle breeders, their technical information about cattle nutrition and preparation of ration would be updated. For this purpose, it is also recommended that agricultural extension service should be boosted to increase the education level and awareness of the cattle breeders in the rural areas.
Show more [+] Less [-]The Effect of Different Estrus Synchronization Methods on Reproductive Performance in Laparoscopic Artificial Insemination Program in Morkaraman Sheep Full text
2022
Müzeyyen Kutluca Korkmaz | Mustafa Yaprak
This study investigated the reproductive performance, lamb survivability, and growing performance of Morkaraman ewes, the estrus of which was induced by natural and synthetic progesterone and which were inseminated by laparoscopic technique at the end of the mating season (December). In the study, 5 different estrus synchronization methods (CIDR, Crestar, Natural progesterone, Cronolone and MAP), 100 Morkaraman ewes, and lambs born to them were used. After the completion of the estrus synchronization methods, the first sign of estrus was detected earliest in the natural progesterone group (39.53±1.87 hours), and there was a significant difference between the natural progesterone and vaginal sponges containing MAP and Cronolone concerning the time to the first hour of estrus. Estrus rates were found significantly different across the study groups, with the shortest time to estrus having been achieved by MAP. The lambing rates for CIDR, Cronolone, Natural progesterone, MAP, and Crestar groups were 74%, 61%, 56%, 33%, and 10%, respectively. There was no significant difference between the treatment groups concerning birth weight, weight at various periods, and survivability of lambs although a significant difference was found in their weaning weight.
Show more [+] Less [-]The Effect of Breeding Flock Age on Fattening Performance and Carcass Characteristics in Broiler Full text
2022
Kadriye Kurşun | Murat Durmuş | Mikail Baylan
In this study conducted to investigate the effect of breeding flock age on the fattening performance and carcass characteristics of broilers, Ross-308 chicks obtained from the eggs of breeding in three different age groups; young (30 weeks old), middle (47 weeks old), and old (59 weeks old) were used. For this purpose, three different treatment groups and three replications in each treatment group were formed depending on the breeder age in the experiment. In the study, 30 chicks in each replication, 90 chicks in each treatment group and 270 chicks in total were used. At the initial and the end of the experiment, the differences observed between the treatment groups in terms of live weight were found to be significant. It was determined that chick live weights per trial increased with increasing flock age (P0.05). As a result, although chicks obtained from old flocks had higher live weight at the beginning of the experiment, the effect of flock age on fattening performance and carcass parameters was eliminated at the end of the experiment and showed similar values with the chicks obtained from medium and young flocks.
Show more [+] Less [-]Kazlarda Selüloz ve Selüloz Fraksiyonlarının Sindirimi Full text
2022
Süleyman Çalışlar
Kanatlı hayvanların sindirim sistemi kısa olduğundan yemlerin sindirim sisteminde kalış süresi kısadır. Buna ilave olarak, kanatlı hayvan türlerinin birçoğunun selüloz, selüloz fraksiyonları (ADF ve NDF) ile nişasta tabiatında olmayan polisakkaritleri sindirebilme ve bunlardan yararlanma yetenekleri düşüktür. Bundan dolayı kanatlı hayvanların beslenmesinde besin madde içeriği yüksek olan daha pahalı yemlerin kullanılması zorunlu hale gelmektedir. Bu durum ise beyaz et ve yumurta gibi hayvansal ürünlerin fiyatlarını yükseltmektedir. Kanatlı hayvan beslemedeki bu dezavantajı avantaja çevirmek için sindirim sistemi daha güçlü, selülozca zengin ucuz yem kaynaklarını daha iyi sindirebilen, kaba yemlerden daha iyi yararlanabilen alternatif kanatlı hayvanlara ihtiyaç duyulmaktadır. Sahip olduğu özellikler açısından değerlendirildiğinde, ucuz yem kaynaklarından daha iyi yararlanabilecek kanatlı hayvanlardan birisinin de kaz olduğu görülecektir. Kazların selülozca zengin kaba yemlerden etkin bir şekilde yararlanabilmesi, yem giderlerini azaltmak suretiyle hayvansal ürünlerin daha ekonomik olması için uygun bir fırsat sunmaktadır. Diğer kanatlı hayvanlara göre kaba yemlerden daha iyi yararlanmasından dolayı beyaz et ve yumurta üretimi için kaz yetiştiriciliğinin yaygınlaştırılması özellikle kırsaldaki nüfus için önemli bir gelir ve geçim kaynağı olabilir. Bu derlemede, kazların mikrobiyal sindirim özellikleri, selüloz başta olmak üzere selüloz fraksiyonlarından ve nişasta tabiatında olmayan yem unsurlarından yararlanabilme yetenekleri incelenmiştir.
Show more [+] Less [-]Forecasting Area, Production and Productivity of Vegetable Crops in Nepal using the Box-Jenkins ARIMA Model Full text
2022
Rabin Thapa | Shivahari Devkota | Sandip Subedi | Babak Jamshidi
Forecasting of vegetable area, production, and productivity of Nepal was made from the historical data of 1977/78 to 2019/20 by using the Box-Jenkins Autoregressive Integrated Moving Average (ARIMA) models. The best fitted ARIMA models were chosen based on the minimum value of the selection criterion, Akaike information criteria (AIC) and Bayesian information criteria (BIC). ARIMA (0, 2, 1) model was found suitable for all areas and production, whereas ARIMA (0, 2, 0) model was best fitted for forecasting vegetable productivity. The model was cross-validated by comparing the point prediction with the actual test series data from 2015/16 to 2019/20. The performances of models were determined from the mean absolute percent error (MAPE) value. The MAPE was found to be 2.70%, 2.40%, and 3.80%, respectively for the prediction of area, production, and productivity. The forecast was made for the immediate five years (2020/21 to 2024/25), and it showed an increasing value for area and production while the forecasts of productivity had lower values. The vegetable production policy in Nepal should be planned following accurate forecasts to increase production in the upcoming years. Awareness among the vegetable growers should be raised in the following years with appropriate extension programs.
Show more [+] Less [-]Changes in Udder Surface Temperature and Milk Quality Characteristics in Cows during the Hot Season Full text
2022
Hüseyin Erdem | İbrahim Cihangir Okuyucu
The aim of this study was to determine the relationships of udder surface temperature (UST) with milk components, and somatic cell count (SCC) in dairy cows during the hot season. The study was carried out with 115 lactating dairy cows (Holstein, Simmental, and Holstein × Simmental) at a private dairy farm in Samsun, Turkey, with monthly visits. The UST was measured from the udder surface before cleaning and milking. At the same time, a portable cell counter and an automatic milk analyzer were used to determine the components and the SCC of the raw milk. The UST values of the cows changed significantly. Increased UST had an adverse effect on milk solids-non-fat (SNF), protein, lactose, and density levels. LogSCC values of cow groups with UST ≤35.0°C, 35.1-36.0°C, >36.0°C were found to be 4.475±0.0803, 4.774±0.1244, and 4.981±0.1491 respectively. The UST negatively correlated with SNF, protein, lactose, density, and freezing point, but positively correlated with LogSCC. As a result, performing UST measurements before milking may be beneficial to monitor udder health and to obtain high quality milk.
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